Homework Help

1) 0.872) 4 and 5/103) 23/25There are 3 questions. We have to rename each decimal,...

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maganda12 | eNoter

Posted October 21, 2008 at 1:34 PM via web

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1) 0.87

2) 4 and 5/10

3) 23/25

There are 3 questions. We have to rename each decimal, fraction, or mixed number as a percent.

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3 Answers | Add Yours

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alivkelley | Middle School Teacher | (Level 1) Adjunct Educator

Posted October 22, 2008 at 2:57 AM (Answer #1)

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When converting a decimal to a percent, move the decimal point 2 places to the right then add a percent sign.

   1) .87 = 87%

When converting a mixed number to a percent you must first make it an improper fraction.  To convert a mixed number to an improper fraction you  First: Multiply the denominator (bottom number of fraction) by the whole number.  Second: Add the numerator (top number of fraction) to that product.  This number is your new numerator for your improper fraction.  Last: The denominator stays the same.

    2) 4 and 5/10

            10x4= 40

            40+5= 45 ----This is your new numerator

 So your improper fraction is 45/10 which can be reduced to 9/2

Then take your improper fraction and divide the denominator into the numerator. 9/2= 4.5  Then you can use the steps from above to turn the decimal into a percent.  Your percentage for #2 would be 450%

3) Use the steps listed above for converting an improper fraction to a decimal then to a percent.

    23/25 = .92

    .92= 92%

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dracomath | Student , Grade 11 | Honors

Posted December 28, 2008 at 4:53 AM (Answer #2)

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1. 87%, 87/100

2. 4.5, 450%

3.  92%, .92

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revolution | College Teacher | Valedictorian

Posted July 4, 2010 at 4:34 PM (Answer #3)

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1) Change 0. 87 into a proper fraction, which is 87/100. Then x100 to get 87%

2) Convert the mixed number into an improper fraction which is 45/10. Multiply x100 to get 450%

3) Multiply 23/25 by x100 to get 92%

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